TrueVue Workbook Quiz - 16 December, 2024 This quiz is created within the Deltex Learning Academy. In order to answer the questions, you must read the Cardiac Anatomy and Physiology section 2 of the Workbook 9052-5401 Issue 1 on the following link Workbook Or visit www.deltexmedical.com and select Education - Academy - Truevue academy - Critical Care Hub - TrueVue Workbook Name Email Hospital Name What happens to blood flow during ventricular systole? Contraction of the left ventricle, blood ejection into the aorta Dilation of left ventricle Both of the above Neither of the above What happens to blood flow during ventricular diastole? Blood is pumped out of the ventricles to the lungs and body Ventricles relax and fill with blood The ventricles contract and force blood into the atria Blood flow to the coronary arteries stops completely What is Cardiac Output? The amount of blood pumped by the heart in one beat The volume of blood remaining in the ventricles after systole The total volume of blood in the entire circulatory system at any given moment Cardiac Output is the volume of blood pumped by the heart per minute What is Stroke Volume? Stroke Volume is the amount of blood pumped by the left ventricle of the heart with each beat Stroke volume is the total amount of blood in the heart at the end of diastole Stroke volume is the amount of blood pumped by the heart per minute Stroke volume is the volume of blood left in the heart after each contraction What four factors will affect Stroke Volume? Preload, Afterload, Contractility, Heart Rate Body temperature, blood pH, heart rate, and blood volume Age, gender, respiratory rate, and sleep patterns Oxygen levels in the blood, blood glucose, exercise intensity, and sodium levels What is preload? Preload is the amount of blood pumped by the heart during systole Preload is the resistance the heart must overcome to eject blood during contraction Preload is the degree of stretch of the heart muscle fibers (myocytes) at the end of diastole, just before the heart contracts Preload is the volume of blood left in the ventricles after systole What is afterload? Afterload is the resistance the heart must overcome to eject blood during ventricular systole Afterload is the volume of blood in the heart at the end of diastole Afterload is the degree of stretch of the heart muscle fibers before contraction Afterload is the amount of blood left in the ventricles after contraction What is contractility? Contractility is the volume of blood that fills the ventricles during diastole Contractility is the pressure the heart generates to overcome arterial resistance Contractility is the amount of blood remaining in the ventricles after systole Contractility is the intrinsic ability of the heart muscle (myocardium) to contract with force, independent of preload and afterload Describe a vasoconstricted circulation and how that might affect blood flow. Describe a vasodilated circulation and how that might affect blood flow. Time is Up! Time's up